Improvement in construction of monuments



UNITED lSTATES PATENT. OFFICE. i-

JOHN M. MARTIN, or CLEVELAND, oIIIo, AssIeNoR" .To HIMsELrAND l MYERS, URL a co., or SAME PLACE.

IMPROVEMENT IN coNsTRucTmNoF MONUMENTS.

Specification forming part of Letters Patent No. 35,278, dated May 13, 1862.

vertical section, and `Figs, 4, and 5 are detached sections.

l Like letters refer to like parts in the several views.

My improvement relates to a catch or fastening so constructed l and arranged that moldings or designs of any kind can be pernlanently and iinmovably secured to menu .ments or slabs of marble, leaving them in re- .lief and. avoiding the necessity of cutting away the entireface of the slab or marble.

In Figs. 1 and 2, A represents a monument or slab placed in the base B, to which it is secured in the usual manner. a

C C- represent brackets that are secured to the edges of the stone at the base by means l of myimprovement.2. l

` D l) representmoldings secured to the face of the ston e, and Frepresents the keystone.

G represents a shield, secured to the face of the stone by means of -niyimprovement, as'

seen in Fig. 2. l

Fig. 4f is an enlarged view of a single fastening, shown in perspective. It consists of a plate, H, to which the guides c., l), c, and' d are secured that keepthe springs Mand N in place. V The springs Mand `N 'embrace the stems of the clutches O and l?, which pass through the guides@ and d.' The body of the clutches are square fand pass through the guides l) and c The ends :that 'approach each other are beveled `from wit-hout inward, forming a double inclined plane, asseen in Fig. 2, for the admission of the head of the bolt, as seen at K, and which separateby th'e pressure of the bolt-head K against the inclined planes by the retraction of the springs M and N, the inclined planes returning and resting on the second head K of the bolt U, which passes through the center of the plate II. Upon the outer end of this bolt Uis cut a screw-thread.

lT represents a nut which screws upon the thread onv the outer end of the bolt U. A cavity is cut in the shield or otherV piece to be secured to the stone and the nut Tis cemented into it. The bolt U is then screwed into the nut such a distance as may be required to bring the piece to be attached to its proper position in regard to the face of the stone, and which is determined by exact measurement after the plate II is set .in the stone, ashereinafter described. v

A cavity is made in the stone, of s uitable size to admit the plate H, and the plate is fastened therein by cement or otherwise. Now by an accurate adjustment of the stem U and heads K K the two parts can be broughttogether, the head I( passing between the clutches O and P, as before described, and the springs M N cause them to return and. rest upon the head K', thus securing the two pieces firmly together.

The keystone F is secured in the same manner as is the shield G. The moldingsD D are fastened at D D in the same way, the upper ends being secured by a recess in the keystone F, asV indicated by the dotted lines in Fig. 3 at F F. ',lhe brackets C C, or ornaments, moldings, or configurations of any kind, can be secured in the same manner as the shield or keystone.

In Fig. 5 is represented a medallion, I, secured to the face of the stone in the same manner as above described. In all such cases it is desirable that the lmedallion should 'stand out from the face of the stone in relief, and for the purpose of accomplishing this object the face of the stone is excavated, as seen at Il I', just enough to bring the carving or'igure above the surface. In this'way the whole expense and labor of cutting away the whole face of the stone can be avoided, while the desired effect of relief can be obtained.

Vhat I claim as my improvement, and desire to secure by Letters Patent, is-

The plate H, clutches O P, nut T, bolt U, springs M N, and heads K K, these several parts being arranged in relation toeach other and operating in the manner and for the purposeherein set forth.

' JOHN M. MARTIN. W'itiiesses:`

W. H. BURRIDGE, HENRY Vorn. 

